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(No Model.)

1-". 'J. WOOSTER. 7 POWER DRIVEN TOOL FOR DRESSING BARS AND INGOTS. No.570,079.

Patented Oct. 27 96.

WITNESSES UNITED STATES FREDERICK J. W OOSTER, OF WVATERBURY,CONNECTICUT, ASSIGNOR TO PATENT OFFICE.

THE IVATERBURY BRASS COMPANY, OF SAME PLACE.

POWER-DRIVEN TOOL FOR DRESSING BARS AND INGOTS..

SPECIFICATION forming part of Letters Patent No. 570,079, dated October27, 1896.

Application filed August 15, 1896. Serial No. 602,850. (No model.)

To all whom it may concern.-

Be it known that I, FREDERICK J .Woosrnn, a citizen of the UnitedStates, residing at Waterbury, in the county of New Haven and State ofConnecticut, have invented certain new and useful Improvements in Power-Driven Tools for Dressing Bars and Ingots; and I do hereby declare thefollowing to be a full, clear, and exact description of the inven-.tion, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention has for its object to provide a simple and inexpensivepower-driven tool for cleaning bars and ingots of metal. YVith this endin view I have devised the novel tool of which the followingdescription, in connection with the accompanying drawings, is aspecification, numerals being used to designate the several parts.

Figure 1 is an elevation of my novel tool complete, and Fig. 2 is an endview with the flexible driving-shaft removed.

It is of course well understood that under the present system ofmanipulation bars and ingots of brass and copper, before being rolled,are dressed by being carefully scraped with a hand-tool, and the deeperimperfections removed with a gouge before it is practicable to submitthem to the rolling operation; otherwise the sheet metal would be fullof flaws and other imperfections and Would be useless for the finergrades of work. This dressing operation is quite expensive, as it takesconsiderable time and wastes a great deal of stock.

My present power hand-tool does away with the use of ordinary hand-toolsentirely and renders the operation of scraping entirely unnecessary.

My novel tool consists, essentially, of a bur 1 and a drill 2, both ofwhich are carried by a shaft 3, journaled in a suitable handpiece A andadapted to receive movement from a flexible power-shaft 4. The handpiececonsists, essentially, of hubs 5 and 6, which are connected by a yoke 7,the latter extending into a handle 8. The bur lies in an opening 9between the hubs and is held in place on the shaft by nuts 10 and 11,which engage different-sized threads on the shaft on oppo site sides ofthe bur. The drill is retained in place bya suitable chuck 12, whichIhave not illustrated in detail, as specifically it forms no portion ofmy present invention. The end of shaft 3 opposite to the chuck isthreaded (see dotted lines, Fig. 1) to receive the connection 13 of theflexible power-shaft.

The operation of my novel tool is as follows: The bur and drill arerotated at any required rate of speed by means of the flexi blepower-shaft, as described. The operator simply passes the bur over thesurface of the bar or ingot to be dressed. The action of the bur is toquickly and lightly remove just the surface of the bar or ingot, withoutcutting into it deeply and without wasting any appreciable amount ofstock. This action of the bur leaves the surface of the bar or ingotbright, so that the operator can easily see any flaws or otherimperfections there may be in its surface. These deeper impressions maybe removed almost instantly by the drill, the operator simply changingthe position of the tool so that the drill will act upon theimperfection in the bar or ingot.

Having thus described my invention, I claim- 1. A tool for cleaning barsand ingots consisting of a handpiece having two hubs with an openingbetween them, a shaft journaled in the hubs and adapted to be connectedwith power driving mechanism, a bur carried by the shaft and lying inthe opening between the hubs and a drill carried at one end of theshaft.

2. A tool for cleaning bars and ingots c011- sisting of a handpiecehaving two hubs with an opening between them, a shaft journaled in thehubs and having a flexible power-shaft connected with one end thereof, abur carried by the shaft and lying in the opening between the hubs, nutson opposite sides of the bur to hold the latter in place, and a chuck at'the opposite end of the shaft from the flexible shaft adapted toreceive a drill, substantially as described.

In testimony whereof I affix my signature in presence of two Witnesses.

FREDERICK J 'WOCSTER.

Witnesses JOHN P. Enron, CHAs. E. CONNER.

